Wednesday - November 11, 2026
Ancient rocks reveal when Earth's tectonic engine 'switched on'
November 11, 2026
PERTH, Australia, Nov. 11 -- Curtin University posted the following news release:

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Ancient rocks reveal when Earth's tectonic engine 'switched on'

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Scientists have identified a major turning point in Earth's geological history, when the processes shaping the planet's crust changed dramatically and began to resemble the plate tectonics we see today - about 2.5 billion years ago.

Plate tectonics shapes . . .

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